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Clathrulina
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedriocystis Minor
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedriocystis Zhadani
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedriocystis Pellucida
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedriocystis
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clathrulina
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clathrulina Smaragdea
Order Desmothoracida, the desmothoracids, are a group of heliozoan protists, usually sessile and found in freshwater environments. The adult is a spherical cell around 10-20 μm in diameter surrounded by a perforated organic lorica, or shell, with many radial pseudopods projecting through the holes to capture food. These are supported by small bundles of microtubules that arise near a point on the nuclear membrane. Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm. Reproduction takes place by the budding-off of small motile cells, usually with two flagella. Later these are lost, and the pseudopods and lorica are formed. Typically, a single lengthened pseudopod will secrete a hollow stalk that attaches the cell to the substrate. The form of the flagella, the tubular cristae within the mitochondria, and other characters ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clathrulina Elegans
''Clathrulina elegans'' is a species of heliozoan eukaryote Eukaryotes () are organisms whose cells have a nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the three domains of life. Bacte ...s in the order Desmothoracida, which are a group of organisms usually sessile and found in freshwater environments. References External links * * Filosa Species described in 1867 {{Cercozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cercozoa
Cercozoa is a phylum of diverse single-celled eukaryotes. They lack shared morphological characteristics at the microscopic level, and are instead defined by molecular phylogenies of rRNA and actin or polyubiquitin. They were the first major eukaryotic group to be recognized mainly through molecular phylogenies. They are the natural predators of many species of microbacteria and Archea. They are closely related to the phylum Retaria, comprising amoeboids that usually have complex shells, and together form a supergroup called Rhizaria. Characteristics The group includes most amoeboids and flagellates that feed by means of filose pseudopods. These may be restricted to part of the cell surface, but there is never a true cytostome or mouth as found in many other protozoa. They show a variety of forms and have proven difficult to define in terms of structural characteristics, although their unity is strongly supported by phylogenetic studies. Diversity Some cercozoans are grouped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blaschka
Leopold Blaschka (27 May 1822 – 3 July 1895) and his son Rudolf Blaschka (17 June 1857 – 1 May 1939) were glass artists from Dresden, Germany, native to the Bohemian (Czech)–German borderland, and known for the production of biological models such as the glass sea creatures and Harvard University's Glass Flowers. Family background The Blaschka family traces its roots to Josefův Důl (Josefsthal) in the Jizera Mountains, Bohemia, a region known for processing glass, metals, and gems. Members of the Blacschka family had worked in Venice, Bohemia, and Germany. Leopold referred to this history in an 1889 letter to Mary Lee Ware: Born in Český Dub, Bohemia, and one of Joseph Blaschke's three sons, Leopold was apprenticed to a goldsmith and gemcutter in Turnov, a town in the Liberec Region of today's Czech Republic. He then joined the family business, which produced glass ornaments and glass eyes. It was there that Leopold developed a technique which he termed "glass-spi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wagneria
''Wagneria'' is a genus of flies in the family Tachinidae. More junior homonyms exist of ''Wagneria'' than any other animal genus name. Species *'' Wagneria albifrons'' Kugler, 1977 *'' Wagneria alpina'' Villeneuve Villeneuve, LaVilleneuve or deVilleneuve may refer to: People * Villeneuve (surname) Places Australia * Villeneuve, Queensland, a town in the Somerset Region Canada * Circuit Gilles Villeneuve, a Formula One racetrack in Montréal * Villeneuv ..., 1910 *'' Wagneria compressa'' (Mesnil, 1974) *'' Wagneria cornuta'' Curran, 1928 *'' Wagneria costata'' ( Fallén, 1815) *'' Wagneria cunctans'' ( Meigen, 1824) *'' Wagneria depressa'' Herting, 1973 *'' Wagneria dilatata'' Kugler, 1977 *'' Wagneria discreta'' Herting, 1971 *'' Wagneria gagatea'' Robineau-Desvoidy, 1830 *'' Wagneria heterocera'' ( Robineau-Desvoidy, 1863) *'' Wagneria lacrimans'' ( Rondani, 1861) *'' Wagneria major'' Curran, 1928 *'' Wagneria micronychia'' Mesnil, 1974 *'' Wagneria micropyga'' Hertin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
